Using tf.exe, you can get a specific version using its time and date:
tf get /version:"D:02/08/2008 1:00:00 AM"
The DateTime format that you use should be one of the formats supported by the .Net framework. So, D2008-02-08T01:00 works, while D2008...

It happens so many times that a developer forgets to unlock files in his workspace before leaving the team for a vacation or for good. To solve this problem, there are several options: remove the lock (this won't work if exclusive checkout is enabled...